—John has put forward _______ most challenging question for us to answer.
—Yes, it really is. I have never heard _______ harder one.
| A．the; 不填 | B．不填; the | C．the; the | D．a; a |
Though _____, the news brought them much encouragement.
| A．surprised | B．being surprised |
| C．having surprised | D．surprising |
I have _____ an eye _____ you now, so you do as you _____!
| A．left; over; have to | B．to keep; on; were told |
| C．kept; down; have been told | D．kept; on; are told |
—Do you think he will finish the job on time?
—Sure. _____ he _____ to do it in his own way.
| A．As soon as; will be left | B．Even if; leaves |
| C．Whenever; has left | D．So long as; is left |
The manager’s son, _____ is Bob, gave me a sweet smile.
| A．his name | B．he name of whom | C．of whom the name | D．of whom name |